c57796dcb2
This PR includes only one of the fxdivi functions (rdivi). It uses a polynomial function for initial approximation followed by 4 newton-raphson iterations to calculate the reciprocal and finally multiplies the numerator with it to get the result. --------- Signed-off-by: Shreeyash Pandey <shreeyash335@gmail.com>
22 lines
829 B
C++
22 lines
829 B
C++
//===-- Implementation of rdivi function ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "rdivi.h"
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#include "include/llvm-libc-macros/stdfix-macros.h" // fract
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#include "src/__support/common.h" // LLVM_LIBC_FUNCTION
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#include "src/__support/fixed_point/fx_bits.h" // fixed_point
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#include "src/__support/macros/config.h" // LIBC_NAMESPACE_DECL
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namespace LIBC_NAMESPACE_DECL {
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LLVM_LIBC_FUNCTION(fract, rdivi, (int a, int b)) {
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return fixed_point::divi<fract>(a, b);
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}
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} // namespace LIBC_NAMESPACE_DECL
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